foo(0u8, _) ==> <<FALSE>>
foo(1u8, "one")
foo(2u8, _) ==> <<FALSE>>
foo(3u8, "three")
foo(4u8, _) ==> <<FALSE>>
foo(5u8, "five")
foo(6u8, _) ==> <<FALSE>>
foo(7u8, "seven")
foo(8u8, _) ==> <<FALSE>>